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Test: Middle School Physical Science
1. | According to the law of conservation of mass, if you start a chemical reaction with 50g of a substance, and 25g of another, you should end the reaction with: (assume this is a closed system) |
less than 75 grams of whatever new substances are created because some mass will be lost in the reaction
75 grams of whatever new substances are created
more than 75 grams of whatever new substances are created because some mass will be created in the reaction
25 grams of the one substance and 50 grams of the other substance
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